Apparatus for destroying weevils.



J. KASMEIER.

APPARATUS FOR DESTROYING WEEVILS.

APPLICATION FILED JUNE 22) 1916.

1,232,323.. Patented July 3, 191?.

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J. KASMEiER.

APPARATUS FOR DESTHOYING WEEVILS.

AIPLICATIQN FILED JUNE 23,1916. 1,232,323., Patented July 3, 1917.

2 SHEETS$HEET 2- \NITN ESSES I ATTO R N EY ETED STATES PATENT oiunon.

JOI-IN KASMEIEB, 0F BEEVILLE, TEXAS.

APPARATUS FOR DESTROYING WEEVILSL To all 7072,0722 it may concern: 1

Be it known that LJOHN KAsMEnin, a citizen of the United States,residing at Beeville, in the county of Bee and State of Texas, have.invented a new and useful Apparatus for Destroying VVeevils, of whichthe following is a specification.

This invention hasreference to an appara tus for destroying weevils andmoths, in- :testing corn, peas, hay, sweet potatoes, beans, and thelike, when stored.

An object of the present invention is to provide a device foraccomplishing this destruction of the weevils and the moths by theapplication. ofheat to the material or substances in which the weevilsand moths are found. i

Another object of this invention isto provide a crib or container forstoring the corn, or the like, and to provide an air heater with anadjustable conducting pipe, which may be moved into various positionsbeneath the crib to distribute the heat at various sides or partsthereof, as isfound desirable in heating the contents of the crib.

further object of the invention is to provide an improved means fordistributing the hot air throughout the body of the corn, or othersubstance placed in the crib, and to provide an improved controllingmeans for passing air up through the corn, and for retaining the heat inthe crib when a desired temperature has been obtained.

Various other more or less important features of the inventionwill bespecifically brought out in the following description of the presentpreferred embodiment of the invention, the same being illustrated in theaccompanying drawings, wherein- Figure 1 is a vertical central sectionthrough a heater constructed according to this invention, the dottedlines showing several positions into which the hot air conducting pipemaybe adjusted.

Fig. 2 is a horizontal section, taken on theline 2-2 of Fig. 1,,throughthe crib or container, and the central heat distributing tube, the viewshowing the perforated floor or bottom of the crib.

Fig. 3 is a horizontal sectional view, taken on the line 3-3 of'Fig. 1,through, the heating chamber, and showing the conducting pipe swungintovarious positions for dis- Specification of Letters Patent.

Patented July 3, 1917.

Application filed June 23, 1916. Serial No. 105,443.

trilguting the heat to various sides of the on Fig. 1 is a detailenlarged section, taken on the line 4lof Fig. 1, and showing the lowerend of the thermometer tube with a thermometer suspended therein.

Fig. 5 is a detail enlarged view of the upper portion of the furnacehood or cap,

and the upper end of the air flue, the view showing the adjustable hotair conducting pipe removed from the due and a hot air diffusing diskmounted on the flue.

Referring to these drawings, wherein like parts are designated bysimilar numerals of reference throughout the several views, 10designates the outer wall of the crib or container, which is adapted toreceive the grain or vegetables to be. heated. The crib is preferably ofcylindrical form, is provided with a perforated bottom 11, andissupported upon an annular wall 12 arranged beneath the bottom 11 andforming thereunder a heating chamber. The lower portion of the crib isprovided with an inwardly spaced annular wall 13 providing between thesame and the outer wall. 10 an annular air space, which opens downwardlythrough the bottom 1.1, into the heating chamber 12. The inner wall 13is perforated, as shown, so that air passing upwardly from the heatingchamber into the annular passage may pass through the perforations inthe inner wall into the interior of the crib.

A heat distributing tube 1 1 rises from the central portion of thebottom 11 and extends upwardly substantially to the middle portion ofthe crib and has an imperforate top and a number of erforations in itsside walls. The tube 1% opens downwardly through the bottom 11 into theheating chamber, so that heat in the heating chamber 12 may passupwardly through the tube 1 1 and be distributed through theperforations therein into the grain or substance which surrounds thetube. A top wall or annular flange 15 joins the upper end of the innerwall 13 to the outer wall or casing 10. The top wall is imperforate, soas to deflect the heated air downwardly and. prevent its free passageupwardly through the annular chamber. Thus, heat from the chamber 12rises through the annular space or chamber of the crib and passesthrough the perforated wall 13 into the grain, and the heat also passescentrally upward through the tube let and is distributed radially intothe middle portion of the body of grain.

The crib 10 is provided with a roof or top 16 of the usual form, andwhich has at its apex, or central portion, a ventilating tube 17,adapted to permit the passage of air from the crib upwardly through theroof. A cap 18 is adjustably mounted upon the upper end of theventilating tube 17, and, when open, as shown in Fig. 1, permits thefree passage of the air upwardly through the crib. At certain times,however, the cap 18 may be closed, so as to prevent a draft of airupwardly through the device.

The crib 10 is provided with a door 19,

' which may be hinged or otherwise suitably mounted at one side of thecrib, as shown in Figs. 1 and 2. An outside spout 20 with a valve 21projects outwardly from one side of the crib adjacent the bottomthereof, and by means of which grain, or the like, may be withdrawn fromthe crib. A second outlet spout 22 projects downwardly from the bottom11 and is arranged inside of the heating chamber. This spout 22 has avalve 23 to control the passage of grain, or the like, downwardlythrough the spout.

For the purpose of heating air in the chamber 12, a furnace 24 adaptedto burn coal, or any other fuel which is convenient and adaptable, isplaced preferably in the central portion of the cylindrical chamber 12.The furnace 2e has a central flue 25 extending upwardly therethrough,the flue having air inlet openings 26 at its bottom to receive airadapted for passage upwardly through the tube 25, and to be heated bythe surrounding fire in the furnace 24:. The furnace 24 has a smoke pipe27 extending from one side of the furnace, and through the wall 12, thepipe 27 opening into a chimney 23, which preferably eX- tends upwardlyagainst the outside of the crib.

The central line 25 is in the form of a cylindrical pipe which projectsupwardly through thefurnace 2 1 and rises to a considerable extentbeyond thesame. A cap or hood 29 is placed over the upper end of thefurnace, and the flue 25 projects upwardly through the central portionof the cap and slightly beyond thesame to provide a nipple, for apurpose which will hereinafter appear.

The cap 29 is supported on bracket arms 30, which are spaced abo'uttheupper end of the furnace 2 1, and which engage the hood 29 to hold it inslightly spaced relation about the furnace 24:. Air, surrounding thefurnace 24:, when heated, passesupwardly into the cap or hood 29 and isconfined therein, and caused to pass through a plurality of air openings31. formed in the flue 25 immediately beneath the top of the cap 29.Thus, the updraft of air through the flue 22 draws in the heated airfrom the cap 29, so as to discharge the heated air both from the fineand from the cap upwardly through the nipple.

Detachably and adjustably mounted on the nipple or open upper end of theflue 25, is a conducting pipe 32,which lies substantially in ahorizontal plane, and which is provided upon its inner end with a downwardly extendingelbow adapted to fit over the upper end of the flue 25and provide a pivotal support for the conducting pipe 32. The outer freeend of the conducting pipe 32 has an upturned elbow or portion todeliver the heated air from the flue 25 upwardly from the outer end ofthe conducting pipe.

As shown in dotted lines in Figs. 1 and 3, the conducting pipe 32 may beswung about the flue 25 into various positions, so as to dispose theoutlet of the pipe 32 beneath the various portions of the crib 10, andthus apply greater heat tosuch portions, as may be found desirable undervarious conditions of use. As shown particularly in Fig. 1, theconducting pipe 32 is adapted to be swung about the flue 25 into suchpositions as to place the discharge end of the conducting pipe beneaththe bottom 10 at points between the beams 33,v so that the heat may passupwardly through the openings in the bottom 11 and will not unduly heatthe beams, or be deflected thereby.

From Fig. 5, it will benoted that the conducting pipe 32 may be liftedupwardly from engagement with the flue 25, and be entirely detached. Inlieu of the conducting pipe, a spreading or distributing disk, 3st maybe placed over the upper end of the flue 25, and held in such positionby means of spring fingers 35, as shown in Fig. 5. In this instance, theheat which rises through the flue 25 strikes the lower face.

of the disk 3 1- and is deflected laterally in all directions beneaththe disk 3st, and is thus evenly distributed throughout the upper end ofthe heating chamber 12.

For the purpose of introducing grain into the crib 10, the top 16thereof is provided at one side with a hinged door or closure 36,through which the grain, vegetables, or other materials may beintroduced into the crib for the purpose of filling the same. A guidingand protecting tube 37 is arranged centrally within the cylindrical crib10, and is supported atits lower end on top of the distributing tube 1%,the tube 37 extending upwardly and preferably into the ventilating tube17. The upper end of the tube 37 is open and is adapted to receivetherein a thermometer 38, which is preferably suspended upon acord 39secured at its upper end to a crosspiece 4.0, to suspend thetherlllO'lTlGtGl 38 in and adjacent to the bottom of the tube 37. Thetube #3? permits the introduction of the thermometer 38 into the middleportion of the body of grain, so that thetemperature of the innermostpart of the body of the substancemay be easily as- (,fG'lbillIlGi'l. Thetube 37 is preferably perforated, so that the heated air may pass freelytherethrough, and the correct registering of the hcatmay be effected.

In use, the material or substance is introduced through the hinged.closure 36 into the crib 10. The material thus stored frequently becomesinfested with weevils, and the like, and to destroy the same, it is onlynecessary to lire the fru-uace 2a to heat air in the flue Q5, andproduce an upward suction of the air to raise the temperature of thesubstance or material in the crib, and thus destroy the weevils. Thedraft of air passing up the line 25 may be, directed through theconducting tube 39 against the bottom 11. of the crib. The conductingtube is turned about the upper end of the Flue 25 to bring the tube intothe desired adjusted position, so that certain parts of the material maybe subjected to greater heating than other parts.

If it is desired to heat all parts of the bottom 11 simultaneouslyandevcnly, the conducting tube 32 is removed from the flue 2-5, and disk3% is placed upon the upper end of the flue, as shown in Fig. 5. Thespring lingers 35 bind about the upper edge of the flue and frictionallyhold the disk 3% in spaced relation above the flue. In this instance,the heat is diffused by the disk into all parts or sides of the heatingchamber 12.

The heated air passes upwardly through theperforations in the bottom 11,into the annular chamber between the walls 10 and 13, and into thedistributing tube 1%. Thus, the heated air is introduced into the inner:most portion of the material and is also ap plied to the materialentirely thereabout, so as to drive out the cold air,.and thoroughlypermeate the material with the warm air from the chamber 12. The crib 10is adapt ed to be filled with the gain, or other substance, and in orderto ascertain the temperature at the middle portion of the crib,

the tube 37 is employed.

In practice, it is found to be desirable to raise the temperature of thematerial .in the crib 10 to not less than 130 F. This temperature shouldbe evenly distributed not only in the center of the grain, or othersubstance, but also at the top and all through the same. When thistemperature is reached uniformly throughout the crib 10, the ventilatingcap 18 is closed more or less to allow but a slow draft of air upwardlythrough the crib. This will retain the heat and it should be maintainedfor approximately fi'n'ty-eight hours, after which time the ventilatingcap 18 should be entirely closed, so as to prevent any draft through thecrib 10. It is found that this treatment of the ma terial in the crib 10entirely destroys and eliminates the weevils, and about once a month thematerial. in the crib should be c.'-:amined, and if the weevils orinsects are found therein, the same heating process as above describedshould be carried out.

If heat is applied as grain is gathered, it will prevent weevil or mold.In the case of Kafir corn, the heads should be put into the crib anddried, then taken out, threshed,

sacked and put back into the crib. This crib may also be used for dryingfruit or raisins.

The crib 10 may be utilized for storing the grain and it is onlynecessary to fire the furnace 9A, and adjust the conducting pipe 32, orthe disk 34L, in place to obtain the desired results and the necessaryapplication of the heat, to evenly raise the temperature throughout thecontents of the crib. Access to the heating chamber 12 may be obtainedthrough a door 41, or the like, placed in one side of the wall of thecham her, and any suitable means other than the openings 26 may beemployed at the lower end of the flue 25 for introducing air into thefine and upwardly through the furnace.

It is obvious that the above described structure may be modified to suitvarious materials, and to adapt the heater to various other uses, suchas for the purpose of killing moths.

What is claimed is 1. In a device as specified, a crib comprising abottom adapted to contain a quantity of material to be stored and havingan annular chamber surrounding the same opening through the bottom ofthe crib and provided with an inner wall perforated sub stantially fromthe top to the bottom, and means for directing hot air into said annularchamber.

2. In a device as specified, a crib adapted to contain a quantity ofmaterial to be stored and having an annular chamber opening through thebottom of the crib and provided with a perforated inner wall, a hot airconducting pipe adjustably mounted beneath the crib to distribute hotair to said annular chamber at various points thereof, and means forsupplying heated air to said pipe.

3. In a device as specified, a crib comprisin g cylindrical. inner andouter walls, spaced apart and connected at the top thereof forming anannular chamber closed at the top andopen at the bottom, said inner wallbeing perforated, a heating chamber beneath the crib, a vertical hot airflue centrally arranged in said heating chamber and having an opening atits upper end, and a horizontally extending conducting pipe hinged atone end upon said upper end of the flue, having its opposite endarranged beneath said chamber and adapted to be swung to allow heatedair to pass into the annular chamber at various points around itsperiphery.

l. In a device of the character described, a crib comprising a bottomadapted to con.- tain a quantity of material to be stored and providedwith a tube extending upwardly through said bottom into the crib spacedfrom the wall thereof and having perforations in its sides, heatingmeans beneath the bottom of said crib and means separate from said tubeifor conveying away the smoke and products of combustion.

5. In a device as specified, a crib having a bottom adapted to contain aquantity of material to be stored and having an annular air chamberopening through the bottom of the crib and provided with a perforatedinner wall, a tube extending upwardly through said bottom into the criband having perforations in its sides, and heating means beneath thebottom of said crib for directing heat through said opening into saidannular chamber and into said tube.

6. In a device as specified, a crib adapted to receive a quantity ofmaterial to be stored, a heating chamber beneath the crib, a tubeprojecting centrally upward into the crib and having communication withsaid heating chamber and being provided with perforations in its lateralwalls, a second perforated tube of reduced diameter supported on andrising from the top of the first tube into the upper end of the crib andbeing open at its upper end, and means'for suspending a thermometer insaid second tube to ascertain the temperature of the crib at the middleof the stored material.

7. In a device as specified, a crib adapted to receive a quantity ofmaterial to be stored, a heating chamber beneath the crib, a furnace inthe heating chamber, a flue in the furnace projecting upwardly from thesame, a hood arranged in spaced rela tion over the furnace to collectheated air from about the furnace, and a conducting pipe adjustablymounted over the hood and over the flue to receive the heated air fromthe hood and the flue and conduct the same to the desired portion of theheating chamber.

8. In a device as specified, a crib having a bottom, an inwardly spacedannular wall within said crib providing thereabout an annular chamberand having perforations therein to admit air from the annular cham tocontain a quantity of material to be stored, means for heating thematerial in said crib, a tube extending from the top of the cribdownwardly into the central portion thereof and adapted to be emersed inthe central portion of the material in the crib, said tube havingperforations therein to receive the heated air from thesurroundingmaterial, and means for suspending a thermometer in the lower end of thetube to obtain the temperature of the central portion of the material.

10. In combination with a crib, an air flue arranged vertically andcentrally beneath the crib, a furnace surrounding the air flue, a hoodarranged in spaced relation over the furnace and surrounding the upperend of the air flue and adapted to collect the heated air surroundingthe furnace, said flue llZLV-r ing perforations therein at a pointwithin the hood to permit air from the hood to pass into the flue, anddetachable and interchangeable air distributing devices adapted to bemounted on the upper end of the flue to receive heated air therefrom andfrom the hood and distribute the air against the bottom of the crib.

In testimony, that I claim the foregoing as my own, I have heretoaffixed my signature in the presence of two witnesses.

' JOHN KASMEIER.

Witnesses:

RICHARD T. Knnrn, P. E. I-IENNEBERG.

Gopies of this patent may be obtained for five cents each, by addressingthe Commissioner 01. Patents Washington, D. G.

